Silver complexing agents
US4311638A · kind A · utility
2Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1980 |
| Grant date | Jan 19, 1982 |
| Priority date | — |
| Expiry date | Oct 30, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/365
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are described photographic products, processes and compositions wherein cyclic crown ether ligands are utilized as silver halide solvents. Also disclosed are novel cyclic crown ether ligands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.